Recently, a lot of Xiao Bai did not know the difference between GIT and GitHub.
Intuitively speaking, GIT can be used as keyboard and display screen for input and output.
GitHub can be used as a hard disk to store your code.
jionIt’s like splicing a list or tuple with a string, and of course, splicing a string with a str
The result is naturally a string.
ex1：
results：
Case application:
When we read something out of a file, it’s often a list with many string elements, and if we want to convert it directly to str, we can use’. join ()
ex2:
Note: the content of jointest.txt is {‘testcase’:’case1′,’testresults’:’Pass’}.
fd.readlines()The result is [‘{‘testcase’:’case1′,’testresults’:’Pass’...
【The first step in developing a trading system is to understand the working principle of the system after the transaction interface is established. This article is a summary of the company’s driver platform documentation I’ve seen. The company was modified from open source vn. py, but the driver engine is the same.
Classification of computer programs
All computer programs can be broadly divided into two types: scripted (single run) and continuous (until the user actively exits).
1、Scripting type
Scripting programs include the earliest batch files and the use of Python to do tr...
Reading catalogues
NIC naming rule file:
Change the CentOS7.x NIC name to the traditional naming method:
Working mode:
Configuration example:
Delete bonding configuration example:
1: files related to network configuration
1、Network card name configuration related files
Back to the top
NIC naming rule file:
/etc/udev/rules.d/70-persistent-net.rules
# PCI device 0x8086:0x100f (e1000)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:db:c9:5c", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x8086:0x100f (e1000)
SUBSYSTEM=="net", ACTION=="add", DRIVERS==...
OAuth It’s an open network standard for authorization and is widely used worldwide. The current version is version 2.0.
In this paper, OAuth 2.0 design ideas and operation process, do a concise and popular explanation, the main reference material for RFC 6749.
I. application scenarios
To understand the application of OAuth, let me give you a hypothetical example.
There is a cloud printing website that can store users in Google photos and print them out. In order to use this service, users must read “cloud printing” to read photos stored on Google.
The problem is that only ...
We confirm our theoretical consideration of model collective learning by experimenting on new data sets and data sets commonly used in entity analysis.
relational learning
collective learning
With the increasing relevance of relational data and network data in different fields such as social network modeling, semantic web, bioinformatics and artificial intelligence, the importance of relational learning is increasing. This paper concerns the application of tensors in relational learning. Tensors and their decomposition are widely used in psychology or chemometrics.And recently, it has been ap...
If anyone asks me, what is the necessary software skills as a data analyst?
There are no more than three tools to answer from the frequency of usage and the scenario used.
1、Excel I believe everyone is familiar with Excel almost every day, although excel is dealing with a small amount of data, but we daily face the frequency of large data processing is not much, unless do some very targeted thematic analysis, so the level of an Excel data analyst, determine this oneHuman growth and efficiency
2、PPT Mainly used to display analytical thinking and analysis results.
3、SQL This i...
stm32The can bus is on APB1, the main frequency of stm32f10x is 72Mhz, the peripheral clock of can is 36Mhz, the main frequency of stm32f2xx is 120Mhz, and the peripheral clock of can is 30Mhz.
STM32 APB1Distinguish from APB2:
APB2Responsible for AD, I/O, advanced TIM, serial port 1.
APB1Responsible for DA, USB, SPI, I2C, CAN, serial port 2345, common TIM
canBus electrical characteristics
It’s not easy to do the data on the CAN bus from the car.
So I first use the oscilloscope (the type of oscilloscope I use is TDS 220) to find the interface of the CAN bus on the car, and then me...
